<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        .t {
            height: 50px;
            border-top: 3px solid #ff8400;
            border-bottom: 2px solid #f2f3f4;
            background-color: #ffffff;
            
        }
        ul {
            list-style: none;
            padding-left: 25px;
        }
        li {
            width: 70px;
            height: 50px;
            display: inline-block; 
            margin-right: 30px;
            line-height: 50px;
            font-size: 15px;
            width: 100px;
        }
        li:hover {
            background-color: #edeef0;
            color: #ff8400;
        }
    </style>
</head>
<body>
    <div class="t">
        <ul>
            <li>新浪导航</li>
            <li>新浪导航</li>
            <li>新浪导航</li>
            <li>新浪导航</li>
        </ul>
    </div>
</body>
</html>